A question about checking kernel options

[jeffycli]

Dear all,

I have been told that in order to support equal cost multipath for my linux box, I have to enable some options in kernel and re-build the kernel. Here is the problem, I would like to check my existing kernel configuration to see if those options are enable. If so, I will not need to re-build my kernel.

Can anyone tell me the ways to check those options?

Here are options that I need to enable

CONFIG_NET_SECURITY
CONFIG_FILTER
CONFIG_IP_ADVANCED_ROUTER
CONFIG_NETLINK
CONFIG_IP_MULTIPLE_TABLES
CONFIG_IP_ROUTE_MULTIPATH
CONFIG_IP_FIREWALL
CONFIG_IP_FIREWALL_NETLINK
CONFIG_NETLINK_DEV
CONFIG_IP_MASQUERADE

Thank you in advanced.

Best regards,
Jeff Li